Mixed connection of acoustics to radio tape recorders with amplifiers of different power. Scheme, description

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Mixed connection of acoustics to radio tape recorders with amplifiers of different power. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Speakers

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According to this scheme, a number of inexpensive devices are still produced: TCH-77 CD receiver (LG Electronics), Daewoo AKF-4087X, AKF-4237X, AKF-4377X, AKF-8017X, Prology KX-2000R, ARX-9751/52 radios , "Ural" (models 206, 207, 208).

Powerful amplifiers of models with channels of different power are made according to the bridge circuit, and less powerful ones - according to the usual one. In addition to the mentioned bi-amping option, you can use a traditional or mixed connection. frontal heads to more powerful rear channels, and rear AC ("sub-sound"), which does not require high power, connect to frontal channels according to the conventional scheme or the Huffler scheme (with a difference signal). The front-rear fader functions are reversed, but it's easy to get used to. All that has been said above regarding the combined connection remains valid, only the ability to adjust the power ratio across the bands in the front channel will disappear.

(click to enlarge)

Similarly to the options considered, in this case, according to the combined scheme, you can turn on the front speakers and the subwoofer, while the fader controls the signal level of the tweeters. The operating frequency ranges of the front speakers and subwoofer should not overlap, so as not to overload the amplifier.

Author: A. Shikhatov; Publication: bluesmobile.com/shikhman

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